Status of the MILC light pseudoscalar meson project

Abstract

We discuss the current status of our calculation of the physics of pi and K mesons using three dynamical flavors of improved staggered quarks. This year, we have a new ensemble with a lattice spacing of 0.06 fm and a light sea mass of 0.2 m_s, as well as significant increases in statistics at several coarser lattice spacings and/or heavier sea masses. Results for decay constants, quark masses, low energy constants, condensates, and V_{us} are presented.

v2: fixed typo in Table 1. Presented by C. Bernard at Lattice 2007; 7 pages, 3 figures